Boiler.



No. 829,889. PATENTED AUG. 28, 1906.

' M. RAPP- BOILER.

APPLICATION FILED NOV.14, 1906.

2 SHEETS-SHEET 1f 34M) auto *6, l vwmmoeo w Tn: NQRRIS PETERS ca,wAsnmnwu, n. c.

PATENTED} AUG.-28, 19 06.

M. RAPP.

BOILER.

APPLIOATION FILED 110114, 1905.

2 SHEETS-SHEET 2.

wi/h msoeo atfozmu y THE NORRIS PETERS cu, wAsmmrrau, n. :4

UNITED STATES PATENT oFFIoE.

BOILER.

Specification of Letters Patent.

Patented Aug. 28, 1906.

Application filed November 14, 1905, Serial No. 287,290.

To all whom it may concern:

Be it known that I, MATHEW RAPP, a citizen of the United States,residing at Morton, in the county of Tazewell and State of Illinois,have invented a new and useful Boiler, of which the following is aspecification.

This invention relates more particularly to boilers for heatingpurposes, though perhaps useful in other relations.

The principal object is to provide a simple structure of a novel naturewherein the parts can be readily manufactured, are entirely accessible,and are not liable to be burned out, said structure maintaining thewater and products of combustion in intimate relation during the passageof the latter through the boiler, thereby effectively utilizing the heatfrom said products of combustion.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, wherein- Figure 1 is a perspective view of theboiler. Fig. 2 is a vertical sectional view through the same. Fig. 3 isa horizontal sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is atop plan view of the furnace. Fig. 5 is a bottom plan view of thecap-section. Fig. 6 is a detail sectional view through the abutted wallsof the two sections, showing the communication between the chambers ofsaid sections. Fig. 7 is a detail prospective view of one of the doubleclosures. Fig. 8.is a detail perspective view of the single closureemployed.

Similar reference-numerals designate corresponding parts in all thefigures of the drawings.

In the embodiment illustrated a furnace is provided that is made up of abase-section 9 and a top section 10. The base-section is in the form ofa ring having an annular waterchamber 11 therein and a centralcombustion-chamber 12, a suitable grate 13 being located beneath andconstituting the bottom of the combustion-chamber. The top section 10,constituting the upper portion of the combustion chamber, 1s providedwith a doorway 14 and a series of outwardly-extending outlets 15. Thistop section is also provided with a water-chamber 16, that par tiallysurrounds the outlets and is in communication with the chamber 11 bymeans of openings formed in the abutted top and bottom walls of the twosections, one of said walls having nipples 17, that pass through ing themeans of communication between annular water-chambers 23 in the saidbodysections. Flue-sections 24 are located in the body-sections and arecompletely surrounded by the water-chambers. These flue-sections are inalinement and a plurality of the same communicate at their lower endwith each of the outwardly-extending outlets 15.

Mounted on the top of the body is a smokeboX section 25 in the form of aring having an annular chamber 26 communicating with the upper ends ofthe various flues 24. This smoke-box section is, furthermore, providedin its top with a series of openings 27, alined with the various flues,one of the openings 28 being located at one side and constituting asmoke passage-way. A cap-section 29 is located on the smokeboX sectionand is in the form of a ring having an annular smoke passage-way 30,with which the opening 28 communicates. The cap-section 29 is providedwith a smoke-outlet 31, located on the opposite side to the openin 28and designed to be connected to a suitable stack or pipe 32. Thiscap-section is provided in its top with openings 33, which openings arein alinement with the openings 27, so that the upper end of the fluesare accessible through the alined openings. Under ordinary conditions,

however, the various openings, with the exception of that designated28,-are closed, and

for this purpose closures 34 are provided for the cap-section, whichclosures rest upon the {pp thereof and are provided with depending s 35,carrying at their lower ends closures 36 that enter the openings 27. Asingle closure 37 is provided for the opening in the cap-section that isover the opening 28. The various sections are secured together bysuitable tie-bolts 38. A return-pipe 39 commu nicates with thebase-section of the furnace, and supply-pipes 40 are in communicationwith the upper end of the same, these various pipes leading to thepoints of use, as will be readily understood. With this structure itwill be apparent that the combustion-chamber and various fines arecompletely surrounded by water, so that there is little danger of thesame becoming burned out. Moreover, by this arrangement the water is inintimate relation with the products of combustion until the same leavethe boiler, and a high degree of efficiency is thereby secured. It willbe apparent that the sections of the structure can be readilymanufactured and assembled, and, furthermore, should one or more becomeinjured or useless from any cause the same can be replaced without thenecessity of an entirely new boiler.

From the foregoing it is thought that the construction, operation, andmany advantages of the herein-described invention will be apparent tothose skilled in the art with out further description, and it will beunderstood that various changes in the size, shape, proportion, andminor details of construction may be resorted to without departing fromthe s irit or sacrificing any of the advantages o the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a boiler of the character described, a body composed of sectionssecured together, said sections having communicating flue portionsforming separate and independent flues through the body andcommunicating waterchambers, and a furnace communicating with saidindependent flues.

2. In a boiler, a body composed of sections secured together, saidsections having alined flue-sections and water-chambers surrounding thesame, said sections having abutted walls that cut off communicationbetween the flue-sections that are out of alinement and form independentflues through the body, said water-chambers of the different sectionsbeing in communication, and a furpiace communicating with theindependent ues.

3. In a boiler of the character described, a body composed of hollowsections superposed one on the other and having top and bottom walls,the bottom wall of one resting on the top wall of the adjacent section,said coacting top and bottom walls being pro vided, one with an openingand the other with a nipple fitting in the opening and con stitutingmeans of communication between the interiors of the different sections,alined independent flue-sections extending through the hollow sections,forming independent flues through the body and a furnace communicatingwith the flue-sections.

4. In a boiler of the character described, a body composed of hollowring-sections having tops and bottoms, the bottom of one sec tionresting upon the top of the section beneath, flue-sections extendingthrough the ring-sections in spaced relation to the side walls thereof,and forming independent flues through the body and a furnacecommunicating with the flue-sections.

5. In a boiler of the character described, the combination with afurnace-section having a chamber provided with a plurality ofoutwardly-extending outlets on different sides thereof, of abody-section located on the furnace-section and having liuescommunicating with the outwardly-extending outlets, said body-sectionhaving a water chamber surrounding the lines.

6. In a boiler of the character described, the combination with afurnace having a combustion-chamber provided with a plural ity ofoutwardly-extending outlets on different sides thereof, of a bodylocated on the furnace and having flues therethrough, a plurality offlues communicating with each of the outwardly-extending outlets, saidbody having a water-chamber surrounding the flues.

7. In a boiler of the character described, the combination with afurnace-section having a combustion-chamber provided with a plurality ofoutwardly-extending outlets on different sides thereof, of a pluralityof ring body-sections supported on the furnacesection and havingcommunicating waterchambers, and independent flues extending through thebody-sections and communicating with the different outlets of thefurnacesection.

8. In a boiler of the character described, the combination with afurnace comprising a base-section having a grate, a combustionchamberand a water-chamber, a top section for said furnace having a pluralityof outwardly extending outlets communicating with thecombustion-chamber, and a waterchamber surrounding the same, of a bodycomprising ring-sections supported on the furnace and having fluestherethrough that communicate with the outwardly-extending outlets,forming a plurality of independent fl'ues through the body andwater-chambers surrounding the fines.

9. In a boiler of the character described, the combination with afurnace and body thereon, said body having flues communicat ing with thefurnace, of a smoke-box section located on the body, and a cap-sectionlocated on the smoke-box section, said smokebox section having anopening in one side that communicates with the corresponding, side ofthe cap-section and said cap-section having an outlet communicating withthe opposite side of the same.

10. In a boiler of the character described, the combination with afurnace and body thereon, said body having flues communicating with thefurnace, of a section located on the body and having openings in linewith the flues, and closures for said openings.

11. In a boiler of the character described,

IIO

the combination with a furnace and body thereon, said body having fluescommunicat ing with the furnace, of a smoke-box section located on thebody, a cap-section located on the smoke-box section, said sectionshaving openings in line with the fiues, and closures for the openings inboth sections.

12. In a boiler of the character described, the combination with afurnace comprising sections, said furnace having communicatingwater-chambers, a combustion-chamber and outwardly-extending outletscommunicating with the combustion-chamber, of a body located on thefurnace and comprising sections provided with water-chambers and fluesextending through said water-chambers and communicating with the outletsof the furnace, a smoke-box section located on the body and having achamber communicating with the fines, said smoke-box section havingopenings in its top in line with the fines, a cap section arranged onthe smoke-box section and having a channel communicating with one sideof the smoke-box-section chamber, a smoke-conduit connected to theopposite side of the cap-section, said cap-section also having openingsin its top alined with the openings in the top of the smoke-box section,closures for the openings in the cap-section, and closures for the oenings in the smoke-boxsection top, said atter closures being connectedto the closures of the cap-section.

13. In a boiler of the character described, an upright body comprisingsections, in the body-sections, forming a plurality of inde- 5 pendentflues, communicating flue-sections through. the body, and water-chamberssurrounding the flue-sections.

14. In a boiler of the character described, an-upright body comprisingsections having a central fuel-magazine extending through the sections,water-chambers surrounding the magazine, and alined flues surroundingthe magazine and extending through the chambers, said sectionshavingabutted top and bottom walls that cut off communication between theflues that are not in alinement.

15. The combination with a body having flues therethrough, of asmoke-box section mounted on the body and having an opening alined withcertain of the fines, a cap-section mounted on the smoke-box section andhaving an opening alined with the opening in the smoke-box section, aclosure detachably mounted over the opening in the cap-section, andanother closure suspended from the first closure and covering theopening in the smoke-box section, the latter closure being removablethrough the opening in the capsectionwhen the closure for the same isremoved.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

MATHEW RAPP.

Witnesses:

JonN GE'rz, Josnrn HAUTER, Jr.

